Designer Door Mat

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    N, M = map(int, input().split())

    for i in range(N // 2): pattern = ".|." * (2 * i + 1) # repeat .|. (odd times) print(pattern.center(M, "-")) # center with '-' print("WELCOME".center(M, "-")) for i in range(N // 2 - 1, -1, -1): # reverse loop pattern = ".|." * (2 * i + 1) print(pattern.center(M, "-"))